Arkansas - Agricultural Communication Services - University of ...

Arkansas Animal Science Department Report 2001
% of N
65
60
55
50
45
Figure 1 A
1999
Y = 0.25 X + 29.8
r 2 = 0.294
40
35
1998
Y = 0.30 X + 12.8
r 2 = 0.597
30
85 95 105 115 125
30-day average temperature ( o F)
% of N
65
60
55
50
45
Figure 1 B
1999
Y = 0.15 X + 36.6
r 2 = 0.439
40
35
1998
Y = 0.15 X + 25.3
r 2 = 0.684
30
90 100 110 120 130 140 150 160
Maximum temperature ( o F)
Figure 1. Linear regressions (P ≤ 0.01) of rumen escape N (% of total N) on (A) 30-d average temperature,
and (B) maximum internal bale temperature. Data from 1998 are represented by ; ;
data from 1999 are represented by . In each case, intercepts associated
with regression lines for 1998 and 1999 differed (P < 0.0001), but slopes did not differ (P ≥ 0.643).
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